The Asteroids An article describing the 30,000 pieces of rocky debris between the orbits of Jupiter and Mars...		Seasons Seasons are caused by the 23.4-degree tilt of Earth's axis, which alternately turns the North...
How Old Is the Universe? An article describing how scientists have determined the age of the universe.		Lowest Recorded Temperatures Distribute a chart that lists the lowest recorded temperatures in various parts of the world.
Parent-Teacher Conference Resources Maximize the benefit of parent-teacher conferences with our planning resources, communication...		Greatest Snowfalls in North America Distribute a chart that lists the greatest recorded snowfalls in North America.
Weightlessness and Gravity This hands-on activity explores the concept of gravity.		Types of Snow Distribute an article that explains where snow comes from and discusses different types of snow...
Comparing Martian Dust Storms to Earth's Cyclones This science investigation gives students hands-on experience with some principles about air...		The Great White Hurricane An article describing the most famous snowstorm in American history – "The Great White...
Teacher-Parent Collaboration A child's education can be greatly enhanced by successful parent-teacher collaborations. Use...		Weather Terms Test your students' knowledge of weather-related vocabulary with this word list.
Advice for Parents Our resources for parents include information and advice on child development, literacy, and...		Glacial Pressure A hands-on science activity will help students to understand the effects of pressure exerted on...
Bringing the Solar System Down to Earth Students create a scaled-down model of the solar system by calculating the planets' diameters...		Indentured Servants' Experiences 1600-1700 Read descriptions from indentured servants of the 1600s-1700s. These fascinating tales are an...
Bringing the Solar System Down to Earth Students create a scaled-down model of the solar system by calculating the planets' diameters...		The 100 Most Significant Events of the Last Thousand Years A list of milestones from the last millennium.
History of the Calendar Learn about the history and purpose of calendars.		Hibernation Report Outline This outline will help students to organize a research project on animals that hibernate.